1. Whether the current of the main motor is stable. If the fluctuation is large or rapid, the supply amount should be temporarily reduced. After the main current is stabilized, it will gradually increase. The speed should be adjusted smoothly. The screw is within the specified speed range.
2. Check the gear deceleration distribution gearbox and the main cylinder to see if there is any abnormal sound. If there is any abnormality, stop it immediately.
3. There should be no abnormal vibration, sturdiness, etc. during the operation of the machine, and the fastening part should not be loose.
4. Check whether the temperature control, heating and cooling system work normally.
5. The water cooling system has smooth pipelines and no leakage.
6. Check if the feeding machine is normal, and whether the screw feeds evenly.
7. Always check whether the machine head is stable and even, with or without broken bars, poor plasticization or overheating.
Normal shutdown sequence
1. Adjust the screw speed of the feeder to zero and press the feeder stop button.
2. Gradually reduce the speed of the main screw, drain the residual material in the cylinder, wash the machine before the parking, and stop the twin-screw main machine after the material is basically discharged, that is, the speed is adjusted to zero, press the main motor stop button.
3. Disconnect the main power switch of the electric instrument operation screen.
4. Close each inlet valve.
5. Clean the surface of the machine head and the entire unit.
